import PitchShift from "Tone/effect/PitchShift";
import Basic from "helper/Basic";
import EffectTests from "helper/EffectTests";

describe("PitchShift", function(){

	Basic(PitchShift);
	EffectTests(PitchShift);

	context("API", function(){

		it("can pass in options in the constructor", function(){
			var pitchShift = new PitchShift({
				"windowSize" : 0.2,
				"pitch" : 2
			});
			expect(pitchShift.windowSize).to.be.closeTo(0.2, 0.01);
			expect(pitchShift.pitch).to.be.closeTo(2, 0.01);
			pitchShift.dispose();
		});

		it("can set positive and negative pitches", function(){
			var pitchShift = new PitchShift();
			pitchShift.pitch = 2;
			expect(pitchShift.pitch).to.be.equal(2);
			pitchShift.pitch = -2;
			expect(pitchShift.pitch).to.be.equal(-2);
			pitchShift.pitch = -4.5;
			expect(pitchShift.pitch).to.be.equal(-4.5);
			pitchShift.dispose();
		});

		it("can get/set the options", function(){
			var pitchShift = new PitchShift();
			pitchShift.set({
				"windowSize" : 0.4,
			});
			expect(pitchShift.get().windowSize).to.be.closeTo(0.4, 0.01);
			pitchShift.dispose();
		});

		it("can set set the feedback and delay times", function(){
			var pitchShift = new PitchShift({
				"delayTime" : "4n",
				"feedback" : 0.3
			});
			expect(pitchShift.delayTime.value).to.be.closeTo(pitchShift.toSeconds("4n"), 0.01);
			expect(pitchShift.feedback.value).to.be.closeTo(0.3, 0.01);
			pitchShift.delayTime.value = 0.2;
			expect(pitchShift.delayTime.value).to.be.closeTo(0.2, 0.01);
			pitchShift.dispose();
		});
	});
});

